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Posted: 7/24/2007 8:58:05 PM EDT
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I'm a complete newbie to suppressors but I'm about to start a 9mm AR SBR build that I would like to suppress. I currently don't own any 9mm weapons (nor do I intend to buy any) but I do have a Glock 23. I am hoping to use a .40 suppressor so I can switch it back and forth between the Glock and the AR. I'm assuming it should still work pretty well on the 9mm, is that correct? My three biggest questions are: What is the best way to mount the suppressor to swap it from a handgun to a pistol? Will a .40 suppressor fit under a Troy rail? And is there any suppressor that you recommend? I would like to spend about $800 on the can and stamp but as always the budget may have to be exceeded. I'll be getting a .22 can shortly after this if not at the same time. The ATF will be getting about $800 from me in the next 90days. Thanks for your help |
| a booster is something added to the suppressor to aid in cycling the pistol. The browning action is tough to unlock with a suppressor on the barrel. I would get a can with a removable booster then so you can use it on your ar15 as well. Of course 40 isn't the best round to suppress. And a 40 can won't sound as nice on your 9mm ar15. I do like the beretta 92 pistols to suppress since you don't need a booster with it. |
I swear I've heard of people running 9mm cans on 5.56 SBRs. Are there 9mm rifle cans? I've kinda realised that swapping from a SBR to a pistol isnt gonna happen. |
You might be getting confused with something like somebody getting a XXX Warrior can bored out to 9mm. The XXX was a steel 5.56 can that you could buy bored out with a 9mm hole. It could be used for either 9mm or 5.56. There were a couple of old 9mm subguns cans that were made of steel that some people used with a 5.56. You can swap most 9mm cans back and forth between 9mm pistols and 9mm rifles not 5.56 ones. The 5.56 is a high pressure rifle round that requires strong materials like steel, inconel, or titanium. The 9mm is lower pressure and aluminum is mostly used for them and works just fine. |
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40 cans aren't as bad as everyone says they are. They're definitely not as quiet as the 9mm's, but they're plenty quiet enough to allow you to shoot comfortably without earpro. If you run things wet (which I don't recommend), it levels the playing field. I am very happy with my AAC Evo-40, even after hearing numerous 9mm cans alongside. |
Threads. You will either need to have your 9mm SBR threaded to a common .40 thread (usually 9/16-24tpi) or you will need to order a custom threaded mount for your .40 caliber suppressor. Probably easier to thread your SBR to the .40 cal thread.
Maybe. 40 cal cans are usually 1 3/8" dia. That will fit under a KAC handguard. If the troy handguard has an ID the same as the KAC handguard or greater, the can will fit.
Right now, the only choices I am aware of for you are the AAC Evolution 40 and the YHM Cobra 40.
No problem. |
are you shooting 9mm or 40 through you Evo-40? |
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Okay new plan: I found a threaded 9mm converion barrel from lonewolf for my G23. Looks like my best option is to get that and have a barrel made with 1/2x28 threads for the AR so I can switch back and forth. My G23 is my only .40 and I don't own a 9mms. Latter I will get a can in either 308 or 5.56 for my other rifles. Before that happens though I need a .22 can and another MKII. I saw a nice MkII hunter with a 6" barrel today as a matter of fact for $300  Would a Gemtech trinity be a good place to start? |
do you happen to have a picture of the spacer and the spring? Not really clear on what your talking about. Thanks |
most would advise no. do a search on a trinity. it doesn't get good reviews. if you can demo a can, demo it. go ahead and get a good can up front. dont save a hundred dollars on a can you'll be disappointed with. get a good one and you won't regret it later on. after you start with a can, it's addictive and you'll want more. so the whole I don't want a can for just one gun will cease and you'll wind up buying several cans. only if you've absolutely got to go with just one can (multicaliber can) go ahead. I'd suggest getting caliber specific cans. you'll be much happier in the long run. if nothing more figure out what you'll shot the most and buy a can for it. i've got the lone wolf 9mm conversion barrel for my glock 22 and evo9. it works great. for 9mm i'd suggest the swr trident9 or aac evo9. you could 3lug the ar barrel for use with a trident9 and evo9 with adapters and still swap pistons for pistols. or thread for 1/2x28 so that they would work on a pistol. |
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here is a photo of the ASAP system for the evo9. Gemtech calls theirs a LID. you may hear them referred to as the booster or Nielsen device. I don't have a photo of the fixed spacer, but it's just a metal cylinder that takes the place of the spring. http://www.monkeytoys.org/images/DSCN3771.JPG |
| I'vew never really understod how the 3-lug mounts work on a handgun. Is there an adaptor that screws onto the threaded barrel? So you just slide the suppressor over the lugs and give it a 1/4 turn to lock it in place? Will taking the can on and off regularly wear the can faster than a threaded setup? |
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